Identification

Title

Outburst flood simulations of various dam failure scenarios from Tsho Rolpa glacial lake, Nepal, 2020

Abstract

This dataset contains maximum water depth and maximum water velocity for 12 different Glacial Lake outburst floods (GLOFs) scenarios of the Tsho Rolpa Lake, Nepal. Also included is the water depth of dam breach flow and discharge of dam breach flow under each scenario. The GLOFs scenarios were created using a simple dam breach model. A high-performance hydrodynamic model was then used to simulate the resulting flood hydrodynamics. Full details about this dataset can be found at https://doi.org/10.5285/f4292d99-de93-4a28-a821-b2a6a826df4c

Resource type

dataset

Resource locator

https://catalogue.ceh.ac.uk/datastore/eidchub/f4292d99-de93-4a28-a821-b2a6a826df4c

name: Download the data

description: Download a copy of this data

function: download

https://data-package.ceh.ac.uk/sd/f4292d99-de93-4a28-a821-b2a6a826df4c.zip

name: Supporting information

description: Supporting information available to assist in re-use of this dataset

function: information

Unique resource identifier

code

https://catalogue.ceh.ac.uk/id/f4292d99-de93-4a28-a821-b2a6a826df4c

codeSpace

doi:

Dataset language

eng

Spatial reference system

code identifying the spatial reference system

Classification of spatial data and services

Topic category

inlandWaters

Keywords

Keyword set

keyword value

Hydrography

originating controlled vocabulary

title

GEMET - INSPIRE themes, version 1.0

reference date

date type

publication

effective date

2008-06-01

Keyword set

keyword value

Glacial lake outburst floods

Hydrodynamic flood modelling

Geographic location

West bounding longitude

86.1

East bounding longitude

86.29

North bounding latitude

27.51

South bounding latitude

27.3

Temporal reference

Temporal extent

Begin position

2020-03-31

End position

2020-03-31

Dataset reference date

date type

publication

effective date

2021-10-07

Frequency of update

Quality and validity

Lineage

A commonly used empirical breach model was adopted to represent the dam breach formation process caused by overtopping. The breach was assumed to start from a small channel formed at the dam crest (initial breach) and grows into a trapezoidal shape with a side-slope of 1:1 during the time of failure. The model further assumes an initial breach depth and a final breach depth, which can be quantified and prescribed according to current dam conditions. A fully hydrodynamic model based on the 2-D depth-averaged shallow water equations (SWEs) was adopted to predict the flooding processes driven by the flow out of the breach of the moraine dam.

Conformity

Conformity report

specification

title

Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services

reference date

date type

publication

effective date

2010-12-08

degree

explanation

Data format

name of format

Comma-separated values (CSV)

version of format

Constraints related to access and use

Constraint set

Limitations on public access

Constraint set

Limitations on public access

Constraint set

Limitations on public access

If you reuse this data, you should cite: Chen, H., Liang, Q., Xiao, W. (2021). Outburst flood simulations of various dam failure scenarios from Tsho Rolpa glacial lake, Nepal, 2020. NERC EDS Environmental Information Data Centre https://doi.org/10.5285/f4292d99-de93-4a28-a821-b2a6a826df4c

Responsible organisations

Responsible party

organisation name

Loughborough University

email address

H.Chen2@lboro.ac.uk

responsible party role

author

Responsible party

organisation name

Loughborough University

email address

Q.Liang@lboro.ac.uk

responsible party role

author

Responsible party

organisation name

Newcastle University

email address

wen.xiao@ncl.ac.uk

responsible party role

author

Responsible party

organisation name

NERC EDS Environmental Information Data Centre

email address

info@eidc.ac.uk

responsible party role

custodian

Responsible party

organisation name

NERC EDS Environmental Information Data Centre

email address

info@eidc.ac.uk

responsible party role

publisher

Responsible party

organisation name

Loughborough University

email address

enquiries@lboro.ac.uk

responsible party role

owner

Responsible party

organisation name

Newcastle University

email address

wen.xiao@ncl.ac.uk

responsible party role

pointOfContact

Metadata on metadata

Metadata point of contact

organisation name

Environmental Information Data Centre

full postal address

Lancaster Environment Centre, Library Avenue, Bailrigg

Lancaster

LA1 4AP

UK

email address

info@eidc.ac.uk

responsible party role

pointOfContact

Metadata date

2021-10-08T10:45:43

Metadata language

eng